Vue 2.6.10 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 341462 bytes (333.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 93675 bytes (91.5k, 27%).

After GZIP compression these minified files vary in size:

unpkg	39927 bytes (39.0k)	CDN
cdnjs	34306 bytes (33.5k)	CDN
gzip -6 (default)	34114 bytes (33.3k)	local copy
Boot	34098 bytes (33.3k)	CDN
gzip -9	34051 bytes (33.3k)	local copy
libdeflate -12	32883 bytes (32.1k)	local copy
7zip -mx=9 -tgzip	32855 bytes (32.1k)	local copy
pigz -11 -n	32811 bytes (32.0k)	local copy
kzip -s0 -rn -b4	32810 bytes (32.0k)	local copy
zultra	32801 bytes (32.0k)	local copy
Zopfli	32743 bytes (32.0k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.6.10.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.6.10 file, ETag caching is available and
if your browser doesn't support GZIP decompression then the uncompressed version will be sent.

Currently best Zopfli settings

Save 1355 bytes by using my Vue 2.6.10 Zopfli version instead of the best available CDN (4.14% smaller than Boot, 32743 vs. 34098 bytes):

Download

You can use my super-compressed files for whatever purpose you like as long as you respect the library's original license agreement.
There are no restrictions from my side - but please avoid hot-linking if you run a high-traffic website.

These command-line settings yielded the best compression ratio so far (Linux version of zopfli-krzymod):
zopfli --i1000000 --mb8 --mls16 --bsr15 --lazy --ohh

(found March 22, 2019)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16	--mls16
block splitting recursion	15	--bsr15
lazy matching in LZ77	yes	--lazy
optimized Huffman headers	yes	--ohh
initial random W for iterations	1	--rw1
initial random Z for iterations	2	--rz2

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.6.10.min.js --location | md5sum
17e942ea0854bd9dce2070bae6826937 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.10.min.zopfli.js.gz | md5sum
17e942ea0854bd9dce2070bae6826937 -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.6.10.min.js --location | sha1sum
434cdec1669f2c6c7406297a72120936bc56ed52 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.10.min.zopfli.js.gz | sha1sum
434cdec1669f2c6c7406297a72120936bc56ed52 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
unpkg	39927 bytes	17e942ea0854bd9dce2070bae6826937	(invalid)
cdnjs	34306 bytes	17e942ea0854bd9dce2070bae6826937	(invalid)
Boot	34098 bytes	17e942ea0854bd9dce2070bae6826937	(invalid)

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available Vue versions at minime.stephan-brumme.com:

2.6.14, 2.6.13, 2.6.12, 2.6.11, 2.6.10, 2.6.9, 2.6.8, 2.6.7, 2.6.6, 2.6.5, 2.6.4, 2.6.3, 2.6.2, 2.6.1, 2.6.0, 2.5.22, 2.5.21, 2.5.20, 2.5.19, 2.5.18, 2.5.17, 2.5.16, 2.5.15, 2.5.14, 2.5.13, 2.5.12, 2.5.11, 2.5.10, 2.5.9, 2.5.8, 2.5.7, 2.5.6, 2.5.5, 2.5.4, 2.5.3, 2.5.2, 2.5.1, 2.5.0, 2.4.4, 2.4.3, 2.4.2, 2.4.1, 2.4.0, 2.3.4, 2.3.3, 2.3.2, 2.3.1, 2.3.0, 2.2.6, 2.2.5, 2.2.4, 2.2.3, 2.2.2, 2.2.1, 2.2.0, 2.1.10, 2.1.9, 2.1.8, 2.1.7, 2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.1, 2.1.0, 2.0.8, 2.0.7, 2.0.6, 2.0.5, 2.0.4, 2.0.3, 2.0.2, 2.0.1, 2.0.0,
1.0.28, 1.0.27, 1.0.26, 1.0.25, 1.0.24, 1.0.23, 1.0.22, 1.0.21, 1.0.20, 1.0.19, 1.0.18, 1.0.17, 1.0.16, 1.0.15, 1.0.14, 1.0.13, 1.0.12, 1.0.11, 1.0.10, 1.0.9,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.3, 0.9.2, 0.9.1, 0.9.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are AngularJS, BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS and UnderscoreJS.

Changelog

Best Zopfli parameters so far:

Size	Improvement	Parameters	Found
32743 bytes	-1 byte	zopfli --i1000000 --mls16 --bsr15 --lazy --ohh	March 22, 2019 @ 22:24
32744 bytes	-4 bytes	zopfli --i100000 --mls16 --bsr15 --lazy --ohh	March 22, 2019 @ 18:09
32748 bytes	-3 bytes	zopfli --i10000 --mls16 --bsr15 --lazy --ohh	March 22, 2019 @ 17:11
32751 bytes	-1 byte	zopfli --i10000 --mls16 --bsr12 --lazy --ohh	March 22, 2019 @ 17:11
32752 bytes	-8 bytes	zopfli --i1000 --mls16 --bsr15 --lazy --ohh	March 22, 2019 @ 16:31
32760 bytes	-3 bytes	zopfli --i1000 --mls2 --bsr10 --lazy --ohh	March 22, 2019 @ 16:31
32763 bytes	–	zopfli --i100 --mls16 --bsr15 --lazy --ohh	March 22, 2019 @ 16:26

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on July 20, 2020 @ 12:51.

Heatmaps

This Zopfli heatmap visualizes how compression changes when modifying the --bsr and --mls parameter.
Cell's contents is the best filesize achieved (in bytes, hover with mouse over cells to see number of iterations).

Good parameters are green, bad are red. The best and worst are bold as well.
The brightness of the blue background color indicates how many iterations were processed:
10,000, 100,000 or 1,000,000.

bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
2	32783	32787	32784	32793	32786	32799	32789	32785	32788	32794	32801	32769	32771	32784	32794
4	32759	32760	32753	32779	32778	32802	32792	32792	32785	32793	32782	32780	32771	32773	32792
6	32798	32799	32794	32789	32793	32789	32792	32789	32790	32791	32774	32772	32770	32769	32791
7	32800	32759	32794	32781	32795	32791	32793	32789	32800	32790	32779	32771	32771	32778	32793
8	32762	32756	32796	32800	32757	32793	32792	32785	32789	32791	32774	32774	32770	32771	32791
9	32755	32777	32768	32756	32753	32790	32795	32787	32789	32789	32777	32778	32771	32770	32788
10	32755	32758	32797	32782	32800	32785	32794	32791	32785	32790	32774	32773	32772	32784	32789
11	32755	32768	32753	32794	32757	32796	32788	32793	32795	32787	32779	32768	32770	32783	32792
12	32754	32760	32756	32746	32748	32805	32793	32788	32797	32789	32775	32776	32771	32773	32789
13	32799	32802	32794	32796	32791	32792	32790	32790	32786	32787	32775	32770	32777	32770	32788
14	32757	32759	32795	32782	32794	32793	32794	32795	32796	32787	32775	32779	32770	32770	32791
15	32796	32803	32790	32743	32791	32789	32794	32794	32797	32789	32780	32773	32771	32770	32790
16	32752	32758	32754	32754	32752	32802	32789	32787	32789	32788	32776	32780	32774	32769	32785
17	32799	32791	32795	32800	32795	32797	32793	32786	32796	32786	32773	32770	32770	32770	32790
18	32803	32800	32796	32802	32790	32796	32794	32792	32798	32791	32776	32778	32768	32778	32790
19	32756	32759	32757	32757	32792	32792	32791	32792	32798	32790	32775	32779	32778	32777	32792
20	32757	32756	32755	32759	32789	32787	32790	32790	32789	32792	32775	32779	32768	32771	32789
21	32789	32803	32801	32796	32788	32794	32793	32791	32783	32790	32775	32778	32771	32768	32791
22	32797	32770	32794	32797	32788	32805	32793	32794	32786	32787	32775	32774	32770	32770	32794
23	32761	32770	32756	32776	32754	32797	32793	32794	32790	32786	32775	32775	32771	32769	32787
25	32802	32800	32753	32762	32787	32792	32793	32789	32790	32786	32775	32779	32771	32771	32786
30	32802	32799	32793	32795	32794	32796	32796	32790	32790	32786	32775	32782	32771	32773	32785
40	32800	32802	32754	32747	32791	32793	32793	32790	32789	32786	32774	32781	32771	32769	32793

Due to the Monte Carlo design of my search algorithm, not all parameters have reached the same number of iterations yet:

Iterations	Min. Bytes	Reduction	Coverage
100	32763 bytes	–	100%
1,000	32752 bytes	-11 bytes	100%
10,000	32748 bytes	-4 bytes	100%
100,000	32744 bytes	-4 bytes	1.16%
1,000,000	32743 bytes	-1 byte	0.29%
10,000,000	–	–	–

KZIP has far less options available for tuning/optimization. I only played around with the number of blocks (parameter -n):

Blocks	Min. Bytes	Compared To Best Zopfli	Compared To Best KZIP
(any)	32888 bytes	+145 bytes (+0.44%)	+78 bytes
1	32888 bytes	+145 bytes (+0.44%)	+78 bytes
2	32882 bytes	+139 bytes (+0.42%)	+72 bytes
3	32878 bytes	+135 bytes (+0.41%)	+68 bytes
4	32810 bytes	+67 bytes (+0.20%)	–
5	32818 bytes	+75 bytes (+0.23%)	+8 bytes
6	32843 bytes	+100 bytes (+0.31%)	+33 bytes
7	32843 bytes	+100 bytes (+0.31%)	+33 bytes
8	32870 bytes	+127 bytes (+0.39%)	+60 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
However, support for Brotli is constantly growing - for example, your browser actually supports it !

Algorithm	Program	Parameters	Size	Compared To Best Zopfli
ZPAQ (Wikipedia)	zpaq	zpaq -method 69	26996 bytes	-5747 bytes (-17.55%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	28007 bytes	-4736 bytes (-14.46%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	29050 bytes	-3693 bytes (-11.28%)
Brotli (Wikipedia)	brotli	brotli -q 11	30785 bytes	-1958 bytes (-5.98%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	31398 bytes	-1345 bytes (-4.11%)
LZMA2 (Wikipedia)	xz	xz -9	31520 bytes	-1223 bytes (-3.74%)
Zstandard (Wikipedia)	zstd	zstd -19	32154 bytes	-589 bytes (-1.80%)

Detailled Analysis

I wrote a DEFLATE decoder in Javascript. Click the button below to start a client-side analysis of the smallest gzipped files (may take a second):

Load and Parse Data

Notes: pigz is a fast open source multi-threaded implementation of gzip written by one of the original authors of gzip.
However, when using compression level 11, pigz actually switches to the slower Zopfli algorithm and isn't multi-threaded anymore.
KrzyMOD's extensions to Zopfli offer the highest level of configuration and is therefore used for my brute-force search.
Ken Silverman wrote the closed-source KZIP compression program and Jonathon Fowler ported it to Linux.
Defluff was created by Joachim Henke; DeflOpt is a tool by Ben Jos Walbeehm.

website made by Stephan Brumme in 2015 and still improving in 2026.
all timestamps are displayed in central european time. see my changelog.
no flash, not even images or external css files - and everything squeezed into a single html file.
which was handsomely compressed before releasing it into the wild internet - obviously.

please visit my homepage and my blog, too.
email: minime (at) stephan-brumme.com

All trademarks are property of their respective owners. You know, the boring legal stuff.